Shell Programming for System Administrators

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Shell Programming for System Administrators :: [SA-245]

course schedule			who can benefit
prerequisites			skills gained
other notes			course content
related solutions

code.

SA-245

length.

5 days

type.

Instructor-Led

partner.

Sun Microsystems

price.

$3,000 :: $2,550 GSA GOV.

The Shell Programming for System Administrators course provides students with the skills to read, write, and debug UNIX shell scripts. The course begins by describing simple scripts to automate frequently executed commands and continues by describing conditional logic, user interaction, loops, menus, traps, and functions. This course is intended for system administrators who have mastered the basics of a UNIX Operating Environment (OE) such as the Solaris OE or Linux and who would like to read and understand the various boot scripts and write their own scripts to automate their day-to-day tasks. This course explores, in detail, the Bourne and Korn shell scripting languages.

Sacramento, CA	aug.4.2008 - aug.8.2008	register
San Francisco, CA	jul.7.2008 - jul.11.2008	register
San Jose, CA	jul.28.2008 - aug.1.2008	register
Phoenix, AZ	jun.16.2008 - jun.20.2008	register
Phoenix, AZ	sep.15.2008 - sep.19.2008	register

Arlington, VA	apr.14.2008 - apr.18.2008	register
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Baltimore, MD	jun.2.2008 - jun.6.2008	register
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Broomfield, CO	may.12.2008 - may.16.2008	register
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Downers Grove, IL	apr.14.2008 - apr.18.2008	register
Downers Grove, IL	jun.23.2008 - jun.27.2008	register
Downers Grove, IL	aug.4.2008 - aug.8.2008	register
Downers Grove, IL	sep.15.2008 - sep.19.2008	register
Edison, NJ	jun.16.2008 - jun.20.2008	register
Edison, NJ	sep.8.2008 - sep.12.2008	register
Ft Lauderdale, FL	apr.21.2008 - apr.25.2008	register
Ft Lauderdale, FL	may.12.2008 - may.16.2008	register
Ft Lauderdale, FL	jul.14.2008 - jul.18.2008	register
Ft Lauderdale, FL	sep.15.2008 - sep.19.2008	register
Hampton, VA	jun.9.2008 - jun.13.2008	register
Hampton, VA	aug.11.2008 - aug.15.2008	register
Houston, TX	jun.16.2008 - jun.20.2008	register
Houston, TX	jul.14.2008 - jul.18.2008	register
Monrovia, CA	jun.2.2008 - jun.6.2008	register
Monrovia, CA	aug.18.2008 - aug.22.2008	register
Nashville, TN	apr.21.2008 - apr.25.2008	register
Nashville, TN	jul.7.2008 - jul.11.2008	register
New York, NY	may.12.2008 - may.16.2008	register
New York, NY	jul.14.2008 - jul.18.2008	register
Omaha, NE	may.19.2008 - may.23.2008	register
Overland Park, KA	jun.2.2008 - jun.6.2008	register
Overland Park, KA	aug.11.2008 - aug.15.2008	register
Philadelphia, PA	may.5.2008 - may.9.2008	register
Philadelphia, PA	sep.22.2008 - sep.26.2008	register
Portland, ME	jun.16.2008 - jun.20.2008	register
Portland, ME	sep.15.2008 - sep.19.2008	register
San Diego, CA	may.19.2008 - may.23.2008	register
San Diego, CA	jul.7.2008 - jul.11.2008	register
San Diego, CA	sep.8.2008 - sep.12.2008	register
Seattle, WA	may.5.2008 - may.9.2008	register
Seattle, WA	sep.8.2008 - sep.12.2008	register
St Louise, MI	may.19.2008 - may.23.2008	register
St. Paul, MN	apr.21.2008 - apr.25.2008	register
St. Paul, MN	jun.9.2008 - jun.13.2008	register
St. Paul, MN	sep.2.2008 - sep.5.2008	register
Tampa, FL	jul.28.2008 - aug.1.2008	register

who can benefit

Students who can benefit from this course are system administrators, system programmers, UNIX operators, database administrators, and Web administrators.

prerequisites

To succeed fully in this course, students should be able to:

	Use basic UNIX commands, such as rm, cp, man, more, mkdir, ps, and chmod
	Create and edit text files in vi or a text editor

skills gained

Upon completion of this course, students should be able to:

	Write real world administration scripts.
	Use regular expressions with the grep, sed, and nawk
	Manipulate text files with grep, sed, and nawk
	Write reporting scripts
	Maintain existing scripts.
	Use flow control constructs, such as branching and looping
	Customize system-wide shell initialization files
	Develop and debug scripts
	Use local and environmental variables and shell metacharacters in scripts
	Use the exit status of a command to determine if the command succeeded or failed
	Develop interactive scripts
	Write a script that uses functions
	Write a script that uses a trap to catch a signal
	Access and process command-line arguments passed into a script
	Write sed scripts to perform noninteractive editing tasks
	Write nawk scripts to manipulate individual fields within a record
	Write nawk scripts to write reports based upon an input file
	Perform string manipulation and integer arithmetic on shell variables
	Develop a USAGE message to display when a script in invoked incorrectly

related courses, exams and materials

	before related training and products

SA-200-S10 System Administration for the Solaris 10 Operating System Part 1

	after related training and products

SA-202-S10 System Administration for the Solaris 10 Operating System Part 2

course content details

	Module 1: UNIX Shells and Shell Scripts

	Describe the role of shells in the UNIX environment
	Describe the standard shells
	Define the components of a shell script
	Write a simple shell script

	Module 2: Writing and Debugging Scripts

	Start a script with #!
	Put comments in a script
	Change permissions on a script
	Execute a script
	Debug a script

	Module 3: The Shell Environment

	Use Bourne and Korn shell variables
	Assign values to shell variables
	Display the value of shell variables
	Make variables available to subprocesses using the export statement
	Display the value of environment variables
	Unset shell and environment variables
	Customize the user environment using the .profile file
	Perform arithmetic operations
	Create and use aliases
	Display aliases and the values assigned to them
	Define the built-in aliases
	Customize the Bourne and Korn shell environments
	Use the tilde expansion and command substitution features of the Korn shell

	Module 4 - Regular Expressions and the grep Command

	Use and describe regular expressions
	Describe the grep command
	Use the grep command to find patterns in a file
	Use the regular expression characters with the grep command

	Module 5: The sed Editor

	Use the sed editor to perform noninteractive editing tasks
	Use regular expression characters with the sed command

	Module 6: The nawk Programming Language

	Use nawk commands from the command line
	Write simple nawk programs to generate data reports from text files
	Write simple nawk programs to generate numeric and text reports from text files

	Module 7: Conditionals

	Use the exit status of a command as conditional control
	Use the "if" statement to test a condition
	Pass values using command-line arguments (positional parameters) into a script
	Create USAGE messages
	Place parameters on the command line
	Use conditional if, then, elif, else, and fi constructs
	Use exit, let, and test statements ([[ ]], " ")
	Apply the &&, \|\|, and ! Boolean logic operators
	Use the case statement

	Module 8: Interactive Scripts

	Use the print and echo commands to display text
	Use the read command to interactively assign data to a shell variable
	Read user input into one or more variables, using one read statement
	Use special characters, with print and echo, to make the displayed text more user friendly
	Create a "here" document
	Use file descriptors to read from and write to multiple files

	Module 9: Loops

	Write scripts that use for, while, and until loops
	Write a script using the select statement
	Describe when to use loops within a script
	Generate argument lists using command, variable, and file-name substitution

	Module 10 - Advanced Variables, Parameters, and Argument Lists

	Declare strings, integers, and array variables
	Manipulate string variables
	Change the values of the positional parameters using the set statement within a script
	Use Korn shell arrays
	Set default values for parameters
	Use the Korn shell built-in let, print, set, and typeset statements

	Module 11: Functions

	Create user-defined functions in a shell script
	Create, invoke, and display functions from the command line
	Pass arguments into a function
	Call functions from special (function) files that are saved in one or more function directories
	Describe where functions are available for use

	Module 12: Traps

	Describe how the trap statement works
	Include trap statements in a script
	Use the trap statement to catch signals and handle errors